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Mazda CX-5 TSB Turbo Engines - Oil Consumption

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  #91  
Old 10-28-2022 | 08:18 PM
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Originally Posted by m5xguy
My only contact with Mazda is when I buy oil filters from them, and the parts guy I deal with is never willing to share any insider information with a DIYer (at least this one anyway), even though I try to use a casual, friendly approach. And their parts counter is located away from the service area, so I'm also not able to make contact with any techs. But your rapport with them is apparently good enough that they're willing to give you honest replies to your questions. So it will be interesting to find out how much their opinion of the 4.4 hours changes a few months from now, after they've done this job a number of times.
Yea, I think its been a huge pain in the butt for everyone. No money really for the dealer to perform the tsb. But they kind of have to. It was again confirmed today that mazda is limiting this procedure to 2 a week per dealer. I am a bit surprised that this info hasn't been confirmed. I was under the impression this forum has a well connected member who has his finger on the pulse of this situation. Cant remember exactly though,........
 
  #92  
Old 10-28-2022 | 08:31 PM
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Originally Posted by ctbale
Yea, I think its been a huge pain in the butt for everyone. No money really for the dealer to perform the tsb. But they kind of have to. It was again confirmed today that mazda is limiting this procedure to 2 a week per dealer. I am a bit surprised that this info hasn't been confirmed. I was under the impression this forum has a well connected member who has his finger on the pulse of this situation. Cant remember exactly though,........

I think
 

Last edited by ctbale; 10-29-2022 at 06:31 AM.
  #93  
Old 10-28-2022 | 09:37 PM
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Originally Posted by twice007
So no head removal? I guess that's a plus and I wonder if they came up with any specialty tools to do the seals with the head in place.
Mazda has been aware of this stem seal issue for more than a year, and during the past month has finally sent a set of SSTs and highly detailed instructions to the dealers for doing the complete job. I suspect they spent a great deal of time reviewing and refining the tools and the process, considering that there's probably going to be quite a few engines getting stem seals replaced, before this is all said and done. This issue has been enough of a black eye for Mazda already, and the last thing they want at this point is for the repair procedure to cause any additional problems.
 
  #94  
Old 11-02-2022 | 06:50 PM
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Originally Posted by ctbale
Valve stem seals can be changed with the head on. Pull the valve cover off, then pull the rockers & springs and they come right off. Close to how you would do it with the head on the bench, BUT the big concern is not allowing the valve to drop in the combustion chamber. Apparently the top of the Piston comes pretty tight up to the face of the valves because the tsb just says bring the Piston to tdc. When I've done this procedure I normally snake in a cord into the combustion chamber and then rotate the engine to get the piston to the top to compress the cord into the valves. Some people use air pressure but that's a little sketchy
So it's sounds like the previous poster who had the seals done only had the exhaust seals replaced and not intake?
 
  #95  
Old 11-02-2022 | 06:54 PM
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Originally Posted by twice007
They only did exhaust seals not intake also?
Yeah I thought that was fascinating that they didn't do the intakes. Maybe it doesn't have intake valve stem seals. Some engines don't. Intake manifold is pressurize much of the time from the turbo so probably not an issue, took Mazda almost a year to create this TSB so I would think it would be a good fix
 
  #96  
Old 11-25-2022 | 12:27 PM
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Regarding CX5 2021 Touring engine non turbo oil consumption.
This problem doesn’t seem to apply to non turbo models.
I have a 2021 cx5 touring non turbo.
The oil consumption burning is not true for non turbo models 2021.
Have monitored oil stick for over 6 months and no oil burning.
oil level still at full all the time.
 
  #97  
Old 11-25-2022 | 01:00 PM
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I believe the issue in the NA 2.5 was limited to 18 and 19 models. Others will chime in if that is off.
 
  #98  
Old 11-25-2022 | 08:11 PM
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Originally Posted by chickdr19
I believe the issue in the NA 2.5 was limited to 18 and 19 models. Others will chime in if that is off.
I check lots of different sources on a regular basis, and have never seen any report of a systemic oil consumption issue on any model year N.A. Skyactiv engine. That of course doesn't mean there isn't one, only that I'm not aware of it if there is.
 
  #99  
Old 11-26-2022 | 06:31 AM
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I am referring to the cracked head issue which was a casting defect. There is a timeframe for that one. It doesn't seem to be systemic though. Some have the issue and some don't.
 
  #100  
Old 11-26-2022 | 08:43 AM
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Originally Posted by chickdr19
I am referring to the cracked head issue which was a casting defect. There is a timeframe for that one. It doesn't seem to be systemic though. Some have the issue and some don't.
This thread is talking about the oil consumption problem, specifically in the 2021 Turbos. So when you wrote 'the issue', anyone seeing that in this thread would naturally assume you were referring to oil consumption, not the head problems. Not trying to pick apart what you wrote, because there's WAY too much of that $hit already on this forum. Just trying to set the record straight for anyone trying to find out about oil consumption in Mazda vehicles.
 


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